Who is that?

你是谁？

Isn't this the Nanjing University?

请问是南京大学吗？

Sure. Oh, sorry, Mary, I'd better go now.

可以。哦，抱歉，Mary，我要挂电话了。

May I make an appointment now?

现在可以预约门诊吗？

Yes, what can I do for you?

是的，我能为您效劳吗？

Yes. I wonder if you can send up some of boiling water for me.

是的，你可以送点开水上来吗？